Study on micro-feature of backlight module for micro injection molding technology

Yung Kang Shen, Yi Lin, Jeou Long Lee, Fwu Hsing Liu, Chih Wei Wu, Keng Liang Ou, Wei Yu Wu, Ya Chan Tu

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This research first indicates the melt front delay of wedge-shaped lightguiding plate of backlight module on micro injection molding. This research fabricated the patterns of mold insert of lightguiding plate by photo etching process. The micro-facture of lightguiding plate was manufactured by micro injection molding. The lightguiding plate of backlight module was used for the PMMA material. The single parameter method was used to discuss the flatness and replication properties for different processing parameters (mold temperature, melt temperature, packing pressure, packing time and injection pressure). The results show that there are melt front delays due to the slow injection velocity, the low temperature induced by the little effect of shear heating, the high viscosity, the large flow resistance and the slow flow velocity. The mold temperature is the most important factor for the flatness and the replication of micro-feature of liughtguiding plate. Lower mold temperature induces better flatness properties. The surface roughness of micro-facture of lightguiding plate is 8.8 nm on micro injection molding for this work.

Original languageEnglish
Pages (from-to)53-57
Number of pages5
JournalKey Engineering Materials
Volume364-366 I
Publication statusPublished - 2008

Fingerprint

Injection molding
Temperature
Polymethyl Methacrylate
Flow velocity
Etching
Surface roughness
Viscosity
Heating
Processing

Keywords

  • Flatness
  • Micro injection molding
  • Micro-feature
  • Replication
  • Surface roughness

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemical Engineering (miscellaneous)

Cite this

Shen, Y. K., Lin, Y., Lee, J. L., Liu, F. H., Wu, C. W., Ou, K. L., ... Tu, Y. C. (2008). Study on micro-feature of backlight module for micro injection molding technology. Key Engineering Materials, 364-366 I, 53-57.

Study on micro-feature of backlight module for micro injection molding technology. / Shen, Yung Kang; Lin, Yi; Lee, Jeou Long; Liu, Fwu Hsing; Wu, Chih Wei; Ou, Keng Liang; Wu, Wei Yu; Tu, Ya Chan.

In: Key Engineering Materials, Vol. 364-366 I, 2008, p. 53-57.

Research output: Contribution to journalArticle

Shen, YK, Lin, Y, Lee, JL, Liu, FH, Wu, CW, Ou, KL, Wu, WY & Tu, YC 2008, 'Study on micro-feature of backlight module for micro injection molding technology', Key Engineering Materials, vol. 364-366 I, pp. 53-57.
Shen, Yung Kang ; Lin, Yi ; Lee, Jeou Long ; Liu, Fwu Hsing ; Wu, Chih Wei ; Ou, Keng Liang ; Wu, Wei Yu ; Tu, Ya Chan. / Study on micro-feature of backlight module for micro injection molding technology. In: Key Engineering Materials. 2008 ; Vol. 364-366 I. pp. 53-57.
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AU - Wu, Wei Yu

AU - Tu, Ya Chan

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